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🔗 Internet 🔗 Computer Security 🔗 Computer Security/Computing

Foldering is the practice of communicating via messages saved to the "drafts" folder of an email or other electronic messaging account that is accessible by multiple people. The messages are never actually sent.

Foldering has been described as a digital equivalent of a dead drop.

🔗 Cryptography 🔗 Cryptography/Computer science

In cryptography, the socialist millionaire problem is one in which two millionaires want to determine if their wealth is equal without disclosing any information about their riches to each other. It is a variant of the Millionaire's Problem whereby two millionaires wish to compare their riches to determine who has the most wealth without disclosing any information about their riches to each other.

It is often used as a cryptographic protocol that allows two parties to verify the identity of the remote party through the use of a shared secret, avoiding a man-in-the-middle attack without the inconvenience of manually comparing public key fingerprints through an outside channel. In effect, a relatively weak password/passphrase in natural language can be used.

🔗 Korea

Nunchi, sometimes noonchi, is a Korean concept signifying the subtle art and ability to listen and gauge others' moods. It first appears in the 17th century as nunch'ŭi (眼勢 in Chinese characters), meaning "eye force/power". In Western culture, nunchi could be described as the concept of emotional intelligence. It is of central importance to the dynamics of interpersonal relationships. Nunchi is literally translated as "eye-measure". It is closely related to the broader concept of paralanguage, however nunchi also relies on an understanding of one's status relative to the person with whom they're interacting. It can be seen as the embodiment of skills necessary to communicate effectively in high context culture.

The concept of nunchi, and one's abundance or lack thereof, forms the basis of many common expressions and idioms. For example, a socially clumsy person can be described as nunchi eoptta (눈치 없다), meaning "absence of nunchi."

눈치 Nunchi is briefly defined as the high social sensitivity of Koreans which basically means they are able to ascertain others moods by being around them and talking to them. They are sensitive to what others say indirectly, because they want to maintain harmony. They do this by the use of the skill named "nunchi" which literally means eye measure in Korean, they sense someone's "kibun", Kibun is a Korean word which relates to mood, current feelings, and the state of mind. Facilitating nunchi, encouraging the use of this skill, is expected to result in rich understanding. It is of central importance to the dynamics of interpersonal relationships. With nunchi, Koreans are using non-verbal cues to convey emotion and meaning through various means, including voice pitch and volume as well as intonation. Nunchi also relies heavily on an understanding of one's status relative to the person with whom one is interacting. Because Korea, as with other high-context cultures caters toward in-groups that have similar experiences and expectations and from which inferences are drawn, many things are left unsaid here. The culture does the explaining, in effect. Both Kibun and Nunchi are very difficult concepts for non-Koreans to get the hang of and they will generally be forgiven for their ignorance of these concepts and consequent rude behavior, especially if they are high on the status ladder. However, one gains more than one loses by trying to understand and, as much as possible, behaving according to these rules of behavior. In Korea, personal relations frequently take precedence over business. In order to be successful, it is vital to establish good, personal relationships based on mutual trust and benefit Koreans judge this by Nunchi to get a base understanding of the individual they just met. Korean business culture is firmly grounded in respectful rapport and in order to establish this, it is essential to have the right introduction to approach the company. Koreans will use Nunchi to make sure the right approach is being used, often through a mutual friend or acquaintance at the appropriate level. Koreans spend a significant amount of time developing and fostering personal contacts. Therefore, time should be allocated for this process, particularly during the first meeting, which is frequently used to simply establish rapport and build trust.

The phrase 눈치 있다 (nunchi itda) refers to someone who's quick witted, can understand the situation quickly, or has common sense. Another way to say this is 눈치 빠르다 (nunchi ppareuda) – to have quick nunchi.

In Korean, the phrase 눈치 없다 (nunchi eoptta) refers to someone that is clueless, someone that doesn't know what's going on, or simply doesn't have any common sense basically it is the exact opposite of nunchi or when someones nunchi is lacking.

🔗 Mathematics

In a foundational controversy in twentieth-century mathematics, L. E. J. Brouwer, a supporter of intuitionism, opposed David Hilbert, the founder of formalism.

🔗 Biography 🔗 Mathematics 🔗 France 🔗 Women scientists 🔗 Biography/science and academia 🔗 Women's History 🔗 Mathematics/Mathematicians

Marie-Sophie Germain (French: [maʁi sɔfi ʒɛʁmɛ̃]; 1 April 1776 – 27 June 1831) was a French mathematician, physicist, and philosopher. Despite initial opposition from her parents and difficulties presented by society, she gained education from books in her father's library, including ones by Leonhard Euler, and from correspondence with famous mathematicians such as Lagrange, Legendre, and Gauss (under the pseudonym of «Monsieur LeBlanc»). One of the pioneers of elasticity theory, she won the grand prize from the Paris Academy of Sciences for her essay on the subject. Her work on Fermat's Last Theorem provided a foundation for mathematicians exploring the subject for hundreds of years after. Because of prejudice against her sex, she was unable to make a career out of mathematics, but she worked independently throughout her life. Before her death, Gauss had recommended that she be awarded an honorary degree, but that never occurred. On 27 June 1831, she died from breast cancer. At the centenary of her life, a street and a girls’ school were named after her. The Academy of Sciences established the Sophie Germain Prize in her honor.

🔗 Philosophy 🔗 Philosophy/Philosophy of religion

"Turtles all the way down" is an expression of the problem of infinite regress. The saying alludes to the mythological idea of a World Turtle that supports the earth on its back. It suggests that this turtle rests on the back of an even larger turtle, which itself is part of a column of increasingly large world turtles that continues indefinitely (i.e., "turtles all the way down").

The exact origin of the phrase is uncertain. In the form "rocks all the way down", the saying appears as early as 1838. References to the saying's mythological antecedents, the World Turtle and its counterpart the World Elephant, were made by a number of authors in the 17th and 18th centuries. This mythology is frequently assumed to have originated in ancient India and other Hinduist beliefs.

The expression has been used to illustrate problems such as the regress argument in epistemology.

🔗 United States 🔗 Architecture 🔗 Urban studies and planning 🔗 United States/Arizona

Arcosanti is a projected experimental town with a molten bronze bell casting business in Yavapai County, central Arizona, 70 mi (110 km) north of Phoenix, at an elevation of 3,732 feet (1,130 meters). Its arcology concept was posited by the Italian-American architect, Paolo Soleri (1919–2013). He began construction in 1970, to demonstrate how urban conditions could be improved while minimizing the destructive impact on the earth. He taught and influenced generations of architects and urban designers who studied and worked with him there to build the proposed "town".

🔗 Companies 🔗 Marketing & Advertising 🔗 Media 🔗 Philadelphia 🔗 Pennsylvania

N. W. Ayer & Son was a Philadelphia advertising agency founded in 1869. It called itself the oldest advertising agency in the United States. Named after Francis Ayer's father N. W. Ayer, it ventured into advertising in 1884. It created a number of memorable slogans for firms such as De Beers, AT&T and the U.S. Army. The company started to decline in the 1960s and, after a series of mergers, was closed in 2002 with its assets sold to the Publicis Groupe.

🔗 Philosophy 🔗 Philosophy/Logic 🔗 Philosophy/Philosophy of mind

Bonini's paradox, named after Stanford business professor Charles Bonini, explains the difficulty in constructing models or simulations that fully capture the workings of complex systems (such as the human brain).

🔗 Computer science 🔗 Economics 🔗 Engineering

In multi-objective optimization, the Pareto front (also called Pareto frontier or Pareto curve) is the set of all Pareto efficient solutions. The concept is widely used in engineering.^{: 111–148} It allows the designer to restrict attention to the set of efficient choices, and to make tradeoffs within this set, rather than considering the full range of every parameter.^{: 63–65 : 399–412}